I wish wornontv.net had been around back then.
https://wornontv.net/ is a website that identifies clothing shown/worn on current TV shows, telling the reader where it was bought and how much they paid for it. It even cross-references between shows, since there will be occasions where a certain piece is worn by multiple actors/hosts on multiple shows (or like this situation, worn by different actors on the SAME show). They would have had a field day back in the 1980s when shows had huge clothing budgets.